Oilfield Equipment Development Center Limited Patent applications |
Patent application number | Title | Published |
20140219825 | HIGH TEMPERATURE MOTOR SEAL FOR ARTIFICIAL LIFT SYSTEM - A thermal compensator for a motor seal, includes: a guide tube for receiving a shaft of the motor seal; a metallic bag disposed around the guide tube and having an expansion profile formed in at least a portion thereof to accommodate radial and circumferential expansion of the metallic bag; a pair of flanges attached to opposite ends of the metallic bag; and a pair of adapters fastened to the respective flanges and receiving respective ends of the guide tube. | 08-07-2014 |
20140077966 | POWER LINE COMMUNICATION SYSTEM - This invention relates to a power line communication (PLC) system wherein the power supply line supplies power and also acts as a communications supply line. A receiver is able to detect small changes in the modulated transmitted information and thereby shut down the circuit. The invention is particularly suitable for use where the IEL is remote from the power supply such as, for example, in down hole oil production situations where very long power cables are used. | 03-20-2014 |
20130186638 | LINEAR ELECTRIC MOTOR FOR ARTIFICIAL LIFT SYSTEM - A method for pumping production fluid from a wellbore includes deploying a downhole assembly of an artificial lift system (ALS) into the wellbore. The downhole assembly includes a linear electric motor (LEM) and a pump. The method further includes operating the LEM, thereby reciprocating the pump and lifting production fluid from the wellbore to surface. The LEM includes a stator and a reciprocating head having permanent magnets. The production fluid leaks through an interface formed between the head and the stator. | 07-25-2013 |
20130183168 | SURFACE PUMP ASSEMBLY - A surface mounted pump assembly includes a centrifugal pump having a plurality of impellers and an electric motor adapted to drive the pump such that a thrust load from the pump is transmitted to the motor. | 07-18-2013 |